Baltimore to Atlanta — airline reliability comparison
Delta Air Lines is the most reliable airline on the BWI to ATL route with a 85% on-time rate, compared to Frontier Airlines at 69%. Based on 10,204 flights tracked.
This route involves high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 85% | 1.2% | 77m | 10,204 |
| Spirit AirlinesNK | 79% | 1.2% | 77m | 1,530 |
| Southwest AirlinesWN | 76% | 1.2% | 53m | 6,893 |
| Frontier AirlinesF9Worst | 69% | 2.7% | 83m | 2,545 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.